Reference ranges for common blood tests

Jump to: navigation, search

WikiDoc Resources for

Reference ranges for common blood tests

Articles

Most recent articles on Reference ranges for common blood tests

Most cited articles on Reference ranges for common blood tests

Review articles on Reference ranges for common blood tests

Articles on Reference ranges for common blood tests in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Reference ranges for common blood tests

Images of Reference ranges for common blood tests

Photos of Reference ranges for common blood tests

Podcasts & MP3s on Reference ranges for common blood tests

Videos on Reference ranges for common blood tests

Evidence Based Medicine

Cochrane Collaboration on Reference ranges for common blood tests

Bandolier on Reference ranges for common blood tests

TRIP on Reference ranges for common blood tests

Clinical Trials

Ongoing Trials on Reference ranges for common blood tests at Clinical Trials.gov

Trial results on Reference ranges for common blood tests

Clinical Trials on Reference ranges for common blood tests at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Reference ranges for common blood tests

NICE Guidance on Reference ranges for common blood tests

NHS PRODIGY Guidance

FDA on Reference ranges for common blood tests

CDC on Reference ranges for common blood tests

Books

Books on Reference ranges for common blood tests

News

Reference ranges for common blood tests in the news

Be alerted to news on Reference ranges for common blood tests

News trends on Reference ranges for common blood tests

Commentary

Blogs on Reference ranges for common blood tests

Definitions

Definitions of Reference ranges for common blood tests

Patient Resources / Community

Patient resources on Reference ranges for common blood tests

Discussion groups on Reference ranges for common blood tests

Patient Handouts on Reference ranges for common blood tests

Directions to Hospitals Treating Reference ranges for common blood tests

Risk calculators and risk factors for Reference ranges for common blood tests

Healthcare Provider Resources

Symptoms of Reference ranges for common blood tests

Causes & Risk Factors for Reference ranges for common blood tests

Diagnostic studies for Reference ranges for common blood tests

Treatment of Reference ranges for common blood tests

Continuing Medical Education (CME)

CME Programs on Reference ranges for common blood tests

International

Reference ranges for common blood tests en Espanol

Reference ranges for common blood tests en Francais

Business

Reference ranges for common blood tests in the Marketplace

Patents on Reference ranges for common blood tests

Experimental / Informatics

List of terms related to Reference ranges for common blood tests

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


A reference range is a set of values used by a health professional to interpret a set of medical test results. The range is usually defined as the set of values 95% of the normal population falls within.

The reference range will vary, depending on the age, sex and race of a population, and even the instruments the laboratory uses to perform the tests. Furthermore, by definition, 5% of the normal population will fall outside the reference range.

Clinical biochemistry

  • Items marked with a ** are part of "CHEM-7"[1] and CHEM-20
  • Items marked with a * are part of "CHEM-20"[2], but not CHEM-7
Category Test Low High Unit Comments
Electrolytes and Metabolites[3] ** Sodium (Na) 136 145 mmol/L
** Potassium (K) 3.5 4.5 mmol/L
Urea 2.5 6.4 mmol/L ** BUN - blood urea nitrogen
Urea 7 18 mg/dL
** Creatinine - male 62 115 μmol/L
** Creatinine - female 53 97 μmol/L
** Creatinine - male 0.7 1.3 mg/dL
** Creatinine - female 0.6 1.1 mg/dL
** Glucose (fasting) 3.9 5.8 mmol/L See also glycosylated hemoglobin
** Glucose (fasting) 70 105 mg/dL
Liver function tests * Total Protein 60 80 g/L
* Albumin 35[4] 50 g/L
* Total Bilirubin 2 14 μmol/L
* Direct Bilirubin 0 4 μmol/L
* Alanine transaminase (ALT) 8 40 U/L Also called serum glutamic pyruvic transaminase (SGPT)
* Alkaline phosphatase (ALP) 40 130 U/L Higher in children and pregnant women.
* Gamma glutamyl transferase n/a 50 U/L
Other enzymes and proteins Creatine kinase (CK) - male 24[5] 195 U/L
Creatine kinase (CK) - female 24[6] 170 U/L
* Aspartate transaminase (AST) 8 35 U/L Also called serum glutamic oxatoacetic transaminase (SGOT)
* Lactate dehydrogenase (LDH) 85 285 U/L
Amylase n/a 120[7] U/L
C-reactive protein (CRP) n/a 5[8] mg/L
D-dimer n/a 500 ng/mL
Other ions and trace metals Ionised calcium (Ca) 1.15 1.29 mmol/L Some calcium is bound to albumin, thus not measured by certain techniques.
* Total calcium (Ca) 2.05 2.55 mmol/L
Copper (Cu) 11[9] 24 μmol/L
Zinc (Zn) 10 17 μmol/L
Lipids Triglycerides 0.4 2 mmol/L
* Total cholesterol 3 5.0[10] mmol/L
HDL cholesterol (male) 0.7 1.9 mmol/L
(female) 0.9 2.4 mmol/L
LDL cholesterol 2.4 3[10] mmol/L Not valid when triglycerides >5.0 mmol/L.
Tumour markers Alpha fetoprotein (AFP) n/a 10 kU/l
Beta Human chorionic gonadotrophin (bHCG) n/a 5 IU/l
CA-125 (also CA12.5) n/a 35 U/ml
CA15.3 n/a 28 U/ml
CA19.9 n/a 40 U/ml
Carcinoembryonic antigen (CEA) - non-smokers n/a 3 μg/l
Carcinoembryonic antigen (CEA) - smokers n/a 5 μg/l
Prostate specific antigen (PSA) n/a 4 μg/L
Hormones Thyroid stimulating hormone (TSH) 0.4 4.7 mIU/L Also called: Thyrotropin
Free thyroxine (FT4) 9 24 pmol/L
Free triiodothyronine (FT3) 2.5 5.3 pmol/L
Adrenocorticotropic hormone (ACTH) 1.3 15 pmol/L
Cortisol (0830 h) 250 850 nmol/L Cortisol levels are higher in the morning than at night.
Cortisol (1630 h) 110 390 nmol/L
Prolactin (male) n/a 450 mIU/L
(female) n/a 580 mIU/L
Testosterone (male) 8 38 nmol/L
(male prepuberty) 0.1 0.5 nmol/L
(female) 0.3 2.5 nmol/L

Hematology

Category Test Low High Unit Comments
Red blood cells Haemoglobin (Hb) (male) 140 180 g/L Higher in neonates, lower in children.
(female) 115 160 g/L Sex difference negligible until adulthood.
Haematocrit (Hct) (male) 0.38 0.52
(female) 0.35 0.47
Mean cell volume (MCV) 80 98 fL Cells are larger in neonates, though smaller in other children.
Mean cell haemoglobin (MCH) 26 34 pg
Red cell count (male) 4.5 6.5 x1012/L
(female) 3.8 5.8 x1012/L
Reticulocytes 10 100 x109/L
erythrocyte sedimentation rate (ESR) n/a 20 mm/hr Females tend to have a higher ESR. ESR increases with age.
White blood cells The Total white blood cells 4 11 x109/L Higher in neonates and infants.
Neutrophil granulocytes 2 7.5 x109/L 45-74%. Also known as granulocytes (grans), polys, PMNs, or segs.
Lymphocytes 1.3 4 x109/L 16-45%
Monocytes 0.2 0.8 x109/L 4.0-10%
Eosinophil granulocytes 0.04 0.4 x109/L 0.0-7.0%
Basophil granulocytes 0.01 0.1 x109/L 0.0-2.0%
Coagulation Platelets 150 400 x109/L Platelets are part of the formation of blood clots
Prothrombin time (PT) 7 10 s PT reference varies between laboratory kits - INR is standardised
INR 0.9 1.2 The INR is a corrected ratio of a patients PT to normal
Activated partial thromboplastin time (APTT) 29 41 s
Thrombin clotting time (TCT) 11 18 s
Fibrinogen 1.8 4 g/L
Bleeding time 2 9 minutes

Immunology

Category Test Low High Unit Comments
Acute phase protein markers of Inflammation Erythrocyte sedimentation rate (ESR) 0 (Age, +10 if female)/2 mm/hr
C-reactive protein (CRP) 0 6 mg/L
Autoantibodies Antinuclear antibodies (ANA)
Extractable nuclear antigen (ENA)
Rheumatoid factor (RF) 0 20 IU/mL High levels not specific for Rheumatoid Arthritis alone.
Serology Antistreptolysin O titre (ASOT) - preschoolers n/a 100 units/mL
Antistreptolysin O titre (ASOT) - others n/a 200 units/mL

See also

References

  1. MedlinePlus Encyclopedia 003462
  2. MedlinePlus Encyclopedia 003468
  3. C. A. Burtis and E. R. Ashwood, Tietz Textbook of Clinical Chemistry (1994) 2nd edition, ISBN 0-7216-4472-4
  4. 288686147 at GPnotebook
  5. 1436155929 at GPnotebook
  6. 1436155929 at GPnotebook
  7. 309002307 at GPnotebook
  8. 946536472 at GPnotebook
  9. 1040580630 at GPnotebook
  10. 10.0 10.1 -214630397 at GPnotebook

External links




Navigation WikiDoc | WikiPatient | Up To Date Pages | Recently Edited Pages | Recently Added Pictures

Table of Contents In Alphabetical Order | By Individual Diseases | Signs and Symptoms | Physical Examination | Lab Tests | Drugs

Editor Tools Become an Editor | Editors Help Menu | Create a Page | Edit a Page | Upload a Picture or File | Printable version | Permanent link | Maintain Pages | What Pages Link Here
There is no pharmaceutical or device industry support for this site and we need your viewer supported Donations | Editorial Board | Governance | Licensing | Disclaimers | Avoid Plagiarism | Policies
Linked-in.jpg